MakeItFrom.com
Menu (ESC)

R30016 Cobalt vs. AWS E310Nb

R30016 cobalt belongs to the cobalt alloys classification, while AWS E310Nb belongs to the iron alloys. They have a modest 32% of their average alloy composition in common, which, by itself, doesn't mean much. There are 23 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is R30016 cobalt and the bottom bar is AWS E310Nb.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
200
Elongation at Break, % 8.4
29
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 85
79
Tensile Strength: Ultimate (UTS), MPa 1010
620

Thermal Properties

Latent Heat of Fusion, J/g 320
300
Melting Completion (Liquidus), °C 1360
1410
Melting Onset (Solidus), °C 1270
1370
Specific Heat Capacity, J/kg-K 450
480
Thermal Conductivity, W/m-K 15
14
Thermal Expansion, µm/m-K 14
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
2.4

Otherwise Unclassified Properties

Density, g/cm3 8.5
7.9
Embodied Carbon, kg CO2/kg material 7.7
5.3
Embodied Energy, MJ/kg 110
76
Embodied Water, L/kg 500
200

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 33
22
Strength to Weight: Bending, points 26
20
Thermal Diffusivity, mm2/s 3.9
3.8
Thermal Shock Resistance, points 24
15

Alloy Composition

Carbon (C), % 0.9 to 1.4
0 to 0.12
Chromium (Cr), % 28 to 32
25 to 28
Cobalt (Co), % 49.6 to 66.9
0
Copper (Cu), % 0
0 to 0.75
Iron (Fe), % 0 to 3.0
44.1 to 53.3
Manganese (Mn), % 0.5 to 2.0
1.0 to 2.5
Molybdenum (Mo), % 0 to 1.5
0 to 0.75
Nickel (Ni), % 0 to 3.0
20 to 22
Niobium (Nb), % 0
0.7 to 1.0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0.2 to 2.0
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Tungsten (W), % 3.5 to 5.5
0